High speed overhead door

Abstract

The invention relates to an overhead door for covering a door opening comprising a door blade ( 11 ) with a plurality of panels ( 17 ), said door blade ( 11 ) being movable between a vertical, closed position and a horizontal, opened or overhead position within a side frame ( 12 ) comprising double-sided a vertical track ( 13 ) and a horizontal track ( 14 ), connected by a connecting portion ( 15 ), respectively, and with a belt ( 20 ) or a chain associated with one side each of the said side frame ( 12 ) to lift the panels ( 17 ) from said vertical position to said horizontal position. To develop the stated overhead door in a way that the advantages of a high speed rollup door and an overhead door are combined, to offer an overhead door with a low space requirement, low maintenance requirements and a high speed closing possibility, the stated overhead door comprises driving means ( 27 ) for simultaneously driving a plurality of said panels ( 17 ).

The invention claimed is: 
     
       1. An overhead door for covering a door opening, the overhead door comprising:
 a door blade with a plurality of panels, said door blade being movable within a frame between a vertical, closed position and a horizontal, opened position; 
 the frame comprising a double-sided vertical track and a horizontal track connected by a connection portion and by a first belt associated with a first side of the said frame and a second belt associated with a second side of the frame configured to lift the panels from said vertical position to said horizontal position; and 
 a driver configured to drive simultaneously the plurality of panels, 
 wherein the driver comprises a conveyor belt system adjacent to the horizontal track, said conveyor belt system being powered by a drum and being, at least in said horizontal position of said door blade, in engagement at least partially with the door blade; and 
 a first disc assigned to a first end of said drum and a second disc assigned to a second end of said drum. 
 
     
     
       2. The overhead door according to  claim 1 , wherein each panel of said plurality of panels has a height from 150 mm to 350 mm. 
     
     
       3. The overhead door according to  claim 1 , said plurality of panels is guided sliding in said frame. 
     
     
       4. The overhead door according to  claim 1 , further comprising:
 a plurality of pairs of end pieces, each pair of said end pieces assigned to one of said panels with one end piece of said pair of end pieces being fitted in longitudinal direction to a first end of the one of said panels and another end piece of said pair of end pieces being fitted in the longitudinal direction to a second end of the one of said panels, 
 wherein for each pair of end pieces, said one end piece being fitted to the first end of said panels is fixed to the first belt and said another end piece being fitted to the second end of said panels is fixed to the second belt, wherein said first belt and the second belt are constructed as flexible, flat belts. 
 
     
     
       5. The overhead door according to  claim 1 , wherein said drum extends parallel to said panels. 
     
     
       6. The overhead door according to  claim 1 , a first blade spring assigned in longitudinal direction to a first end of said drum and a second blade spring assigned in the longitudinal direction to a second end of said drum. 
     
     
       7. The overhead door according to  claim 1 , wherein said drum extends parallel to said panels and is arranged in a transition region between said vertical tracks and said horizontal tracks, said drum being carried by a support. 
     
     
       8. An overhead door for covering a door opening, the overhead door comprising:
 door blade with a plurality of panels, said door blade being movable within a frame between a vertical, closed position and a horizontal, opened position; 
 the frame comprising a double-sided vertical track and a horizontal track connected by a connection portion and by a belt associated with one side each of the said frame and configured to lift the panels from said vertical position to said horizontal position; and 
 a driver configured to drive simultaneously the plurality of panels, 
 wherein the driver comprises a conveyor belt system adjacent the horizontal track, said conveyor belt system being powered by a drum and being, at least in said horizontal position of said door blade, in engagement at least partially with the door blade; and 
 a first blade spring assigned in longitudinal direction to a first end of said drum and a second blade spring assigned in the longitudinal direction to a second end of said drum. 
 
     
     
       9. An overhead door for covering a door opening, the overhead door comprising:
 a door blade with a plurality of panels, said door blade being movable within a frame between a vertical, closed position and a horizontal, opened or overhead position; 
 the frame comprising a double-sided vertical track and a horizontal track connected by a connection portion and by a belt associated with one side each of the said frame and configured to lift the panels from said vertical position to said horizontal position; and 
 a driver configured to drive simultaneously the plurality of panels, wherein the driver comprises a conveyor belt system adjacent the horizontal track, said conveyor belt system being, at least in said horizontal position of said door blade, in engagement at least partially with the door blade, and 
 said conveyor belt system comprising at least one cogwheel, a conveyor belt, a chain and a plurality of wheels. 
 
     
     
       10. The overhead door according to  claim 9 , further comprising a bracket coupling said conveyor belt of said conveyor belt system with an upper end of said belt. 
     
     
       11. The overhead door according to  claim 9 , wherein said door blade is guided above said conveyor belt of said conveyor belt system. 
     
     
       12. The overhead door according to  claim 9 , further comprising a transmission element coupling said cogwheel or any of said other wheels of said conveyor belt system, with a drum or a disc. 
     
     
       13. The overhead door according to  claim 9 , further comprising a drum, and a motor coupled to said drum or said cogwheels or any of said other wheels of the conveyor belt system. 
     
     
       14. The overhead door according to  claim 9 , said conveyor belt system being powered by a drum, a first disc assigned to a first end of said drum and a second disc assigned to a second end of said drum. 
     
     
       15. The overhead door according to  claim 9 , said conveyor belt system being powered by a drum, a first blade spring assigned in longitudinal direction to a first end of said drum and a second blade spring assigned in the longitudinal direction to a second end of said drum. 
     
     
       16. The overhead door according to  claim 9 , further comprising a transmission element coupling said cogwheel with a drum or with a disc. 
     
     
       17. An overhead door for covering a door opening, the overhead door comprising:
 a door blade with a plurality of panels, said door blade being movable within a frame between a vertical, closed position and a horizontal, opened or overhead position; 
 the frame comprising a double-sided vertical track and a horizontal track connected by a connection portion and by a belt associated with one side each of the said frame and configured to lift the panels from said vertical position to said horizontal position; and 
 a driver configured to drive simultaneously the plurality of panels, said connection portion comprising a guideway with a disc, at least one wheel, a support belt and a curve guiding.